Mathematics, 28.10.2019 20:31 phancharamachasm
Given that p = (2, 9) and q = (4, 14), find the component form and magnitude of vector pq.
< 2, 5> , square root of twenty nine
< -2, -5> , 29
< 2, 5> , 29
< -2, -5> , square root of twenty nine
question 2(multiple choice worth 2 points)
let u = < -4, -3> . find the unit vector in the direction of u, and write your answer in component form.
vector with two components. first component, negative four divided by five. second component, negative three divided by five.
< 1, 1>
vector with two components. first component, negative four divided by seven. second component, negative three divided by seven.
vector with two components. first component, negative four divided by twenty five. second component, negative three divided by twenty five.
question 3(multiple choice worth 2 points)
let u = < -5, -9> , v = < 6, 8> . find -8u - 2v.
< 52, 88>
< -8, 2>
< 112, -28>
< 28, 56>
question 4(multiple choice worth 2 points)
let u = < -8, -9> . find 7u.
< -56, 63>
< -56, -63>
< 56, -63>
< 56, 63>
question 5(multiple choice worth 1 points)
let u = < 9, 4> , v = < -2, 5> . find u + v.
< 13, 3>
< 14, 2>
< 7, 9>
< 11, -1>
question 6 (essay worth 2 points)
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One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?
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Given that p = (2, 9) and q = (4, 14), find the component form and magnitude of vector pq.
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